List of usage examples for java.util ArrayList add
public boolean add(E e)
From source file:Main.java
public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("1"); arrayList.add("2"); arrayList.add("3"); Vector<String> v = new Vector<String>(); v.add("4");/* w ww .jav a 2s . c o m*/ v.add("5"); // insert all elements of Vector to ArrayList at index 1 arrayList.addAll(1, v); for (String str : arrayList) System.out.println(str); }
From source file:Main.java
public static void main(String[] args) { ArrayList<String> aList = new ArrayList<String>(); aList.add("1"); aList.add("2"); aList.add("3"); aList.add("4"); aList.add("5"); // Get an object of ListIterator using listIterator() method ListIterator listIterator = aList.listIterator(); listIterator.next();//from w ww . j a v a 2 s. com listIterator.next(); // remove element returned by last next method listIterator.remove(); for (String str : aList) { System.out.println(str); } }
From source file:Main.java
public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("1"); arrayList.add("2"); arrayList.add("3"); arrayList.add("4"); arrayList.add("5"); List lst = arrayList.subList(1, 3); for (int i = 0; i < lst.size(); i++) System.out.println(lst.get(i)); // remove one element from sub list Object obj = lst.remove(0);/*from w w w. ja va 2 s . c o m*/ System.out.println(obj + " is removed"); for (String str : arrayList) System.out.println(str); }
From source file:Main.java
public static void main(String[] args) { ArrayList<String> al = new ArrayList<String>(); al.add("Java"); al.add("SQL"); al.add("Data"); System.out.println("ArrayList:" + al); String[] s1 = new String[al.size()]; String[] s2 = al.toArray(s1); System.out.println("s1 == s2:" + (s1 == s2)); System.out.println("s1:" + Arrays.toString(s1)); System.out.println("s2:" + Arrays.toString(s2)); s1 = new String[1]; s1[0] = "hello"; // Store hello in first element s2 = al.toArray(s1);//from w w w . j ava2s. c om System.out.println("s1 == s2:" + (s1 == s2)); System.out.println("s1:" + Arrays.toString(s1)); System.out.println("s2:" + Arrays.toString(s2)); }
From source file:Main.java
public static void main(String[] a) { ArrayList<String> nums = new ArrayList<String>(); nums.clear();//from w w w.j a v a 2 s. c om nums.add("One"); nums.add("Two"); nums.add("Three"); System.out.println(nums); nums.set(0, "Uno"); nums.set(1, "Dos"); nums.set(2, "Tres"); System.out.println(nums); }
From source file:Main.java
public static void main(String[] args) { Vector<String> v = new Vector<String>(); v.add("1");/*from www . j a v a2 s . co m*/ v.add("2"); v.add("3"); ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("One"); arrayList.add("Two"); arrayList.add("Three"); arrayList.add("Four"); arrayList.add("Five"); System.out.println(arrayList); Collections.copy(arrayList, v); System.out.println(arrayList); }
From source file:Main.java
public static void main(String[] a) { ArrayList<String> nums = new ArrayList<String>(); nums.clear();//from w w w. j a v a 2 s. c o m nums.add("One"); nums.add("Two"); nums.add("Three"); System.out.println(nums); nums.set(0, "Uno"); nums.set(1, "Dos"); nums.set(2, "java2s.com"); System.out.println(nums); }
From source file:Main.java
public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("1"); arrayList.add("2"); arrayList.add("3"); Vector<String> v = new Vector<String>(); v.add("4");//from w w w. java2 s . c om v.add("5"); // append all elements of Vector to ArrayList arrayList.addAll(v); for (String str : arrayList) System.out.println(str); }
From source file:MainClass.java
public static void main(String args[]) { ArrayList<Integer> al = new ArrayList<Integer>(); al.add(1); al.add(2);// w w w. j av a 2 s . c o m al.add(3); al.add(4); System.out.println("Contents of al: " + al); Integer ia[] = new Integer[al.size()]; ia = al.toArray(ia); int sum = 0; for (int i : ia) sum += i; System.out.println("Sum is: " + sum); }
From source file:Main.java
public static void main(String[] args) { ArrayList<String> arrlist = new ArrayList<String>(5); arrlist.add("G"); arrlist.add("E"); arrlist.add("F"); arrlist.add("M"); arrlist.add("E"); arrlist.add("from java2s.com"); System.out.println("Size of list: " + arrlist.size()); System.out.println(arrlist);//from w w w. j a va 2 s. c om // Removes first occurrence of "E" boolean value = arrlist.remove("E"); System.out.println("Now, Size of list: " + arrlist.size()); System.out.println("Value = " + arrlist); }